The ball's initial velocity is as shown below moving at an unspecified angle ϕ. Pay special attention to labelling slopes and axis intercepts and treat the ball's initial position as the origin (both time and space) for the plots. (a) Fill in and justify the plots below as a function of time, regarding the ball's motion. (b) Analyze: how much work has been done on the ball when x = 0 and t > 0? Label this point on the appropriate plot.